CN104320471B - A kind of method of mobile device electric power mutual assistance - Google Patents
A kind of method of mobile device electric power mutual assistance Download PDFInfo
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- CN104320471B CN104320471B CN201410596510.XA CN201410596510A CN104320471B CN 104320471 B CN104320471 B CN 104320471B CN 201410596510 A CN201410596510 A CN 201410596510A CN 104320471 B CN104320471 B CN 104320471B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/566—Grouping or aggregating service requests, e.g. for unified processing
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Abstract
A kind of method of mobile device electric power mutual assistance, comprises the following steps：The first step：By means of electric person a charge request is sent to management server；Second step：Management server receives the value-at-risk of request and computation requests；3rd step：Management server is to find all power supply persons by means of electric person；4th step：Management server calculates the priority of all candidate power suppliers；5th step：A power supplier is selected by means of electric person, and asks to establish the link with power supplier；6th step：Management server confirms to borrow the charging link between electric person and power supplier；7th step：Management server helps to establish the link by means of electric person and power supplier；8th step：Open the wireless charging module of two equipment and start to charge up；9th step：Management server calculates service credit and debt credit.The present invention can help the crowd for holding the wireless device of low battery, can also establish trusting relationship by this mutual assistance behavior, help to expand the social networks of people.
Description
Technical field
The present invention using network where user find can mutual assistance charging other users, under outdoor environment can not and
When supplement the user of electricity the scheme of timely electric power mutual help service be provided, belong to wireless self-networking, wireless charging technical field, fit
For wireless device MANET and mobile communications network.
Background technology
Under general calculation environment, work, life and the amusement of people become increasingly dependent on wireless device.With such as moving
The popularization of the wireless devices such as phone, tablet personal computer (PAD), palm PC, we can any place at any time, it is lasting
Place outside office is carried out the work, entertained, communicating and doings.With the progress of science and technology, the electricity of these equipment
The pond life-span has substantially increased, but people still frequently encounter the problem of wireless device electricity is low, and due to short of electricity, we are not
Not suspend or termination activity.Particularly when we handle urgent task, perhaps electric power of equipment deficiency can be brought can not
Expected loss.
Fortunately, nowadays wireless charging technology is very ripe, also, with GPS extensive use, and we can be with
Quickly find around use mobile device crowd.On this basis, we have proposed one to help people at one from group
In net the scheme of power taking power is borrowed for the wireless device of its low battery., can be from other electricity when wireless device electricity is relatively low
Power taking power is borrowed in sufficient wireless device.For example, you have a hot job to need outside office (such as in public transport or subway)
Handle, and you need to keep in touch by mobile phone and your colleague.But unfortunately, your mobile phone electricity is very low, and
There is no any chargeable equipment or power outlet around you.In this case, you can be to the sufficient hands of electric power around
Machine or wireless device borrow power taking power for your mobile phone.Using the program, the wireless device that can help to hold low battery
Crowd.In addition it is also possible to by this mutual assistance behavior, trusting relationship is established, helps to expand the social networks of people.
In our scheme, the borrowing and lending behavior of electric power is recorded, and other are all with electric power mutual assistance phase
The behavior of pass, form a social networks mutually supported.So as to realize the electric power mutual assistance of " All for one and one for all ".For
Ensure that each user can be borrowed to electricity when short of electricity, electricity, application claims tool are actively lent the electric power abundance when
Debt user able to make payment has the obligation for repaying electric power.Under such mechanism, user can be happy to help other people very much, because
Guarantee can be got at the same time for them, while their reputation can also get a promotion.
In addition, compared with other resources, electric power debt-credit has its specificity, such as emergency, position correlation, etc..At this
In the scheme of invention, the present invention devises a risk-control mechanism to protect the interests of power supply person.The present invention is also provided with
One different execution level ensures that one in good standing is borrowed electric person in case of emergency to borrow to get electric power.Due to movement
The wireless charging of equipment needs a metastable position, and the present invention devises a stable evaluation algorithm, helps to borrow electricity
Person finds a suitable electricity supplier.In the present invention, complete describe of the present invention wirelessly sets in general fit calculation
The realization of standby electric power mutual assistance.
The content of the invention
In order to solve to be lost in daily life because electric power lacks such as data brought, data transmission fault
The problems such as, the present invention proposes a kind of new method to help people be the mobile device of their low battery from the movement of surrounding
Power taking power is borrowed in equipment.
A kind of method of mobile device electric power mutual assistance, individual subscriber wireless device interconnects, and passes through wireless network pipe
Manage server, all devices in this network must all possess can realize to other equipment charge and be electrically charged wireless
Charging module, it can be taken and lender, management server will manage all user's logging in network as borrowing for electricity, monitoring is set
Standby state, charging requirement is received, find power supplier, to establish contact by means of electric person and power supplier, and update Transaction Information；
Comprise the following steps：
The first step：By means of electric person a charge request is sent to management server
In all users for identifying oneself with electric power mutual assistance wireless network, if equipment of the user in the presence of needing to be electrically charged, is borrowed
Electric person b sends charge request rb using the wireless device in equipment and gives wireless network management server, and allows management server m
Read his configuration file and equipment state；
Second step：Management server receives the value-at-risk of request and computation requests
The value-at-risk of management server computation requests first is to determine whether to receive this charge request, management server
M receives request rb, and obtains the configuration file on user equipment and status of equipment, then according to the configuration file and equipment of user
Situation calculates rb value-at-risk and risk class, if value-at-risk is higher than critical value, request may be rejected；
The value-at-risk of request is defined as follows：
Value-at-risk and the credit worthiness of user, transaction count is related, and in formula, Cb is user b prestige, and Tb is user b ginsengs
With transaction number, prestige is the accumulative of the electricity of user's debt-credit；
Risk class is divided into low risk class, and moderate risk class, high risk grade, risk class is according to letter
Number Risk (rb) value defines；
3rd step：Management server is to find all power supply persons by means of electric person
Management server m can call location Based service, and now server can be obtained first in the data by means of electric person b equipment
GPS information, the information provided according to GPS longitude and latitude, management server can be using by means of in certain limit of the electric person as the center of circle
The GPS information of every other user equipment is obtained, and all users are with borrowing the distance between electric person in computer capacity, according to by means of electricity
All mobile device users around by means of electric person are found in person b position, then it send one comprising request rb and it
Risk class give those users for receiving electric power mutual help service agreement on network, if these users agree to lending they
Electric power, they reply server and turn into candidate power supplier l1, l2 ..., ln；
4th step：Management server calculates the priority of all candidate power suppliers
If the quantity of candidate power supplier is more than one, management server m can call these from the database of server
The conventional Transaction Information of power supplier, candidate power supplier l1 is calculated according to the status of equipment of candidate power supplier and historical record,
L2 ..., ln priority, wherein, the priority for the power supplier that status of equipment is excellent and historical transaction record enjoys a good reputation can be high
In other people, then management server, which can give, borrows electric person to send a list according to the candidate power supplier of priority rank；
The priority of power supplier is defined as follows：
Ei is power supplier, and li electric power abundance degree, Si is power supplier, and li is relative to the Position stability by means of electric person b, Ci
Power supplier li credit worthiness, Ti be power supplier Ei participate in transaction number, Cmax be | C1 |, | C2 | ..., | Cn | } in most
Big value, Cmin be | C1 |, | C2 | ..., | Cn | } in minimum value, Tmax is the maximum in { T1, T2 ..., Tn }；
Position stability Si can be defined as：
{d1b,d2b,…,djb,…,dmbIt is the test for borrowing the distance of m times between electric person b and power supplier li,It is { d1b,
d2b,…,djb,…,dmbAverage value, and
5th step：A power supplier is selected by means of electric person, and asks to establish the link with power supplier
A power supply is selected according to priority and other information from one group of power supplier { l1, l2 ..., ln } by means of electric person b
Person, and the information of selection is sent to management server, management server receive information and informed the transmission of this information selected
Power supplier, notify selected power supplier to open charging module and prepare to begin setting up charging link, if power supplier is ready to fill
Electric then return information, if the interim busy or equipment of power supplier breaks down, returns to management service to management server
The information that device can not charge, if server, which receives, charge information or not to receive the feedback information of power supplier for a long time,
Then notice finds power supplier again by means of electric person, and the power supplier for starting a new round searches, by that analogy；
6th step：Management server confirms to borrow the charging link between electric person and power supplier
Management server can confirm the execution level of transaction and record to borrow filling between electric person b and selected power supplier li
Electrical links；
Perform level and be divided into pressure grade, common grade, voluntary grade, this is to regard request rb risk class and urgent
Depending on degree；
7th step：Management server helps to establish the link by means of electric person and power supplier
In this step, management server can establish a physical link borrowed between electric person b and power supplier li, prepare nothing
Micro USB electricity；
8th step：Open the wireless charging module of two equipment and start to charge up
In this step, the wireless charging mould in their embedded wireless charging devices can be opened by means of electric person b and power supplier li
Block simultaneously starts to charge up.When charging process is completed, they send information to management server；
9th step：Management server calculates service credit and debt credit.
Management server can borrow the amount taken to calculate credit worthiness according to electric power, and update other historical tradings letter of both sides
Breath；
Calculating for credit worthiness：
(1) direct credit value
According to the history interaction experiences (history intersection record table) for asking letter to act on behalf of and obtain letter agency, the calculating of direct credit worthiness
Formula
It is defined as：
Wherein, si (x, y, n ', b ') represents the credit value between period n ', background b ' interactive agents；Wi is background phase
Like the variation of degree, Wi ∈ [0,1], if current background and the background of last interaction are more similar, its value is on the contrary closer to 1
Closer to 0；δ represents whether act on behalf of both sides occurred whether history interaction has history intersection record table；Fi represents to obtain letter agency
The time-concerning impact factor of the significance level of view, fi are defined as follows determined by the time of last time contacts：
Tp is the time or period of the last contacts in formula, and Tn is the contacts time now, and N is time decay factor, and N is got over
Small, the speed of decay is bigger；
(2) recommendation reputation value
The calculating of recommendation reputation value is according to time and background, obtains obtaining the poly- of letter agency from several third-party agents
Close prestige；Prestige polymerize
It is defined as follows：
μ in formula,η refers to the weight factor of first-hand, second-hand and the 3rd hand view respectively；Si (yi, n, b) is third party
Recommended agent provides the confidence level of prestige view；Fview (yi, y) represents first that prestige recommended agent yi obtains that letter acts on behalf of y to letter
Hand view；Sview (yi, y) expression recommended agents yi is obtained second-hand's view that letter acts on behalf of y；Tview (yi, y) represents to recommend generation
Manage yiTo the 3rd hand view for obtaining letter and acting on behalf of y；
(3) group's credit value
One expert panel is formed by the high third-party agent of prestige, by experience in person come to other agencies or service
Make evaluation；Group's credit value
It is defined as：
In formula, g represents to allow the group's number occurred.Gi (gi, n, b) represents that the letter agency that obtains that i-th of group provides believes
Reputation value, Rg (gi, y) represent the confidence level of i-th of group；
(4) comprehensive credit worthiness
Comprehensive trust value
SOC-TrustSM(dT,iT,C,G)
It can use as formula is as follows：
Wherein, α 1, α 2, α 3 represent the weight factor of direct prestige, recommendation reputation and group's recommendation reputation, and value all exists
Between [0,1], and α 1+ α 2+ α 3=1.
Wireless charging module of the present invention includes induction charging module, magnetic resonance charging module or wireless
Electric wave formula charging module.
The present invention can help the crowd for holding the wireless device of low battery, can also be built by this mutual assistance behavior
Vertical trusting relationship, help to expand the social networks of people.
Below in conjunction with the accompanying drawings and present invention is expanded on further in embodiment.
Brief description of the drawings
Fig. 1 is general frame schematic diagram of the present invention；
Fig. 2 is present invention specific implementation step schematic diagram；
Fig. 3 is the function Risk (rb) of the present invention；
Fig. 4 is the function f of the present invention.
Embodiment
The wireless device of oneself is connected in same management server by all users for participating in electric power mutual assistance agreement, so
The facility information and transaction record of oneself are uploaded afterwards, and management server is that all facility informations establish database, and record is all
The equipment state of equipment and the historical transaction record of user, during whole electric power mutual assistance, pass through management service between user
Device is exchanged, and reaches mutual assistance transaction purpose, and by management server managing user information, implement pressure when being necessary and arrange
The user for forcing credit worthiness relatively low is applied to the people's charging for lacking electric power.All devices in this network must all possess can be with
For other equipment charging and the wireless charging module being electrically charged can be asked.Each among them needs that electricity can be used as
Borrowing for amount takes and lender.Management server will manage all user's logging in network, monitor the state of their equipment, and reception is filled
Electricity requires, finds electricity supplier's (or being power supplier), to establish contact by means of electric person and power supplier, and updates Transaction Information.
The overall architecture of the present invention is shown in Fig. 1.
The first step, the user (present invention be referred to as borrow electric person) of mobile device low battery is to wireless network management server
Device sends a charge request.Certainly, they must log in management server before this step.
Second step, management server receives request, and calculates its value-at-risk.If the value-at-risk of request is controllable, the is turned to
Three steps, otherwise, request will be rejected.
3rd step, management server can be to find power supply person by means of electric person.In this step, management server will be called
Location Based service (LBS) with find borrow electric person around all mobile device users.Then it sends information to agreement
The user of electric power mutual assistance agreement.If these electricity suppliers agree to lend their electric power, they need to reply to server.
4th step, management server calculate candidate electricity supplier according to the equipment state and historical record of electricity supplier
Priority, then send the list of a power supply person based on priority ranking to by means of electric person.
5th step, select a power supply person by means of electric person and ask to establish the link with it.
6th step, management server confirm to borrow the charging link between electric person and power supplier.
7th step, management server help to create link by means of electric person and power supplier.
8th step, wireless charging module is opened to charge in the equipment of both sides by means of electric person and power supplier.
Final step, management server calculate service credit and debt credit and more New Transaction according to the amount of borrowed electric power
Historical data.
The each step detailed design of the present invention is as follows：
The Integral Thought of this invention is that individual subscriber wireless device interconnects, and passes through wireless network management server.
If they agree to electric power mutual assistance agreement, they can mutually find other side after management server is logged in.
All devices in this network must all possess can realize to other equipment charge and be electrically charged wireless
Charging module.Borrowing for electricity is can serve as to take and lender.Management server will manage all user's logging in network, monitor him
Equipment state, receive charging requirement, find electricity supplier's (or be power supplier), to be established by means of electric person and power supplier
Contact, and update Transaction Information.The detailed process of the present invention is shown in Fig. 2.
The first step：By means of electric person a charge request is sent to management server
In all users for identifying oneself with electric power mutual assistance wireless network, if equipment of the user in the presence of needing to be electrically charged, this
Invention is referred to as borrowing electric person, and sending charge request using the wireless device in his or her equipment utilization equipment by means of electric person b (is expressed as
Rb wireless network management server) is given, and allows management server m to read his configuration file and equipment state.
Second step：Management server receives the value-at-risk of request and computation requests
In this step, what management server first had to do is exactly the value-at-risk of computation requests to determine whether to receive this
Secondary charge request, management server m receives request rb, and obtains the configuration file on user equipment and status of equipment, Ran Hougen
Rb value-at-risk and risk class are calculated according to the configuration file and status of equipment of user, if value-at-risk is higher than critical value, request
It may be rejected.
The value-at-risk of request is defined as follows：
Value-at-risk and the credit worthiness of user, transaction count is related, and in formula, Cb is user b prestige, and Tb is user b ginsengs
With transaction number.Prestige is the accumulative of the electricity of user's debt-credit, if credit worthiness is lent, it can be a negative.Letter
Number Risk (rb) is if as shown in figure 3, user b credit worthiness is a negative, and its absolute value is bigger, and Risk (rb) value is got over
It is high；Opposite, if the credit worthiness of user is a positive number, its value is bigger, and Risk (rb) value is lower, and transaction count is more,
Value-at-risk is lower.Therefore, whole risk value function can react performance of the user in conventional transaction record, and and user well
Credit worthiness it is closely related, once credit worthiness is negative value, then the absolute value of negative value is bigger, and value-at-risk is more intended to represent highest wind
The value-at-risk 1 of danger, credit worthiness is if on the occasion of absolute value is bigger, and value-at-risk is more intended to represent the value-at-risk 0 of priming the pump.
Risk class is divided into low risk class, and moderate risk class, high risk grade, risk class is according to letter
Number Risk (rb) value defines.If risk class of Risk (rb) value less than 0.3, rb is low risk class, such as
Fruit Risk (rb) value is higher than 0.3, and the risk class not higher than 0.7, rb is moderate risk class, otherwise, rb risk
Grade is high risk grade, as shown in Table 1.
Table one：Risk class defines
3rd step：Management server is to find all power supply persons by means of electric person.
In this step, management server m can call location Based service, and now server can first be obtained and set by means of electric person
GPS information in standby data, according to GPS longitude and latitude provide information, management server can using by means of electric person as the center of circle
Obtain the GPS information of every other user equipment in certain limit, and in computer capacity all users and by means of between electric person away from
From finding all mobile device users around by means of electric person according to the position by means of electric person b.Then its transmission one, which includes, asks
Rb and its risk class is asked to receive the user of electric power mutual help service agreement on network to those.If these users agree to
Their electric power is lent, they reply server and turn into candidate power supplier l1, l2 ..., ln
4th step：Management server calculates the priority of all candidate power suppliers
In this step, if the quantity of candidate power supplier is more than one, management server m can be from the database of server
The middle Transaction Information for calling these power suppliers conventional, candidate's power supply is calculated according to the status of equipment of candidate power supplier and historical record
Person l1, l2 ..., ln priority, wherein, the priority for the power supplier that status of equipment is excellent and historical transaction record enjoys a good reputation
Other people can be higher than, then management server, which can give, borrows electric person to send the row according to the candidate power supplier of priority rank
Table.
The priority of power supplier is defined as follows：
Ei is power supplier li electric power abundance degree, and Si is that power supplier li relative to the Position stability Ci by means of electric person b is to supply
Electric person li credit worthiness, Ti be power supplier li participate in transaction number, Cmax be | C1 |, | C2 | ..., | Cn | } in maximum
Value, Cmin be | C1 |, | C2 | ..., | Cn | } in minimum value, Tmax is the maximum in { T1, T2 ..., Tn }.
Formula (2) shows, if the equipment of power supplier possesses higher electricity, he has higher priority lending electric power；Such as
Fruit power supplier has preferable Position stability relative to by means of electric person, and he has higher priority lending electric power；If power supplier's
Credit worthiness is higher, there is more transaction counts, and he just has higher priority lending electric power.
Position stability Si can be defined as：
{d1b,d2b,…,djb,…,dmbIt is the test for borrowing the distance of m times between electric person b and power supplier li,It is { d1b,
d2b,…,djb,…,dmbAverage value, and
Si is a real number not yet standardized, so it is difficult to using it as the measurement of Position stability.Function f:R→
[0,1] can be counted as Si standardization, and candidate functions f is a kind of s type functions as shown in Figure 4.
S type functions are defined as follows：
5th step：A power supplier is selected by means of electric person, and asks to establish the link with power supplier
In this step, selected by means of electric person b from one group of power supplier { l1, l2 ..., ln } according to priority and other information
Select a power supplier.And the information of selection is sent to management server, management server receive information and sends this information
Selected power supplier is informed, notifies selected power supplier to open charging module and prepare to begin setting up charging link, if power supply
Person gets out charging, and then return information to management server, if the interim busy or equipment of power supplier breaks down, returns
The information that can not be charged to management server, if server receive can not charge information or for a long time do not receive power supplier's
Feedback information, then notice finds power supplier again by means of electric person, and the power supplier for starting a new round searches.By that analogy.
6th step：Management server confirms to borrow the charging link between electric person and power supplier
In this step, management server can confirm the execution level of transaction and record to borrow electric person b and selected power supply
Charging link between person li.
Perform level and be divided into pressure grade, common grade, voluntary grade, this is to regard request rb risk class and urgent
Depending on degree, its definition is as shown in Table 2.
Table two：Risk class defines
In grade is forced, power supplier, which must give, borrows electric person to charge, in common grade, if power supplier refuses to being in
Emergency borrows electric person to charge, and he or she can be punished, and in voluntary grade, power supplier can refuse in emergency
Borrow electric person charge without being punished.
In addition, if the prestige of power supplier is just, i.e., power supplier and to exist by means of between electric person for the negative prestige for borrowing electric person
Electric power debt, it can force grade that, which performs level,.
Rb urgency is asked according to borrowing the electric remaining electric power of person's equipment to define, as shown in Table 3.
Table three：Urgency defines
7th step：Management server helps to establish the link by means of electric person and power supplier
In this step, management server can establish a physical link borrowed between electric person b and power supplier li, prepare nothing
Micro USB electricity.
8th step：Open the wireless charging module of two equipment and start to charge up
In this step, the wireless charging mould in their embedded wireless charging devices can be opened by means of electric person b and power supplier li
Block simultaneously starts to charge up.When charging process is completed, they send information to management server.Currently available wireless charging technology
Including induction charging, magnetic resonance charging and radio waves type charging.
9th step：Management server calculates service credit and debt credit
In this step, management server can borrow the amount taken to calculate credit worthiness according to electric power.For by means of electric person, it
It is a debt credit, it can be subtracted from total credit worthiness by means of electric person.For power supplier, he is service credit, its meeting
Added up from total credit worthiness of power supplier.Certainly, other historical transactional informations of both sides can be updated.
Calculating for credit worthiness：
With reference to existing credibility evaluation model, the definition related to reputation model is provided.
1 (asking letter to act on behalf of) is defined under given background and period, it is loyal or conviction one to having for another agency
Agency.
2 (obtaining letter agency) are defined in given background and under the period, by a generation of another agency's sustenance loyalty or conviction
Reason.
Define the polymerization of all confidence levels on obtaining letter agency from third party's recommended agent of 3 (prestige).According to
Tripartite prestige nominator be it is direct recommend, recommend indirectly or it is secondary recommend indirectly, can accordingly be divided into first-hand, second-hand and
3rd hand prestige view (is trusted the complexity calculated to reduce, provided herein：Prestige view considers the view of the 3rd hand, surpasses
That crosses the 3rd hand sees rule as the 3rd hand view to calculate).First-hand prestige view is the direct letter of third party's recommended agent
Praise view；Second-hand's prestige view is the indirect prestige view of third party's recommended agent；3rd hand prestige view is that third party pushes away
Recommend the secondary prestige view indirectly of agency.
Define 4 (direct prestige) and ask letter to act on behalf of A and act on behalf of B direct credit worthiness to obtaining letter and refer to interact note from A and B history
Evaluations of the A to B confidence levels is found out in record.
Define 5 (recommendation reputations) ask letter act on behalf of A and obtain letter act on behalf of B do not have history interaction it is recorded, third party can be passed through
A kind of credit worthiness acted on behalf of C introduction and established.
Define 6 (group's prestige views) and an expert is formed by the high third-party agent of degree of belief in services computing environment
Group, evaluation is made to other agencies or service by experience in person.
The calculating of credit worthiness
(1) direct credit value
According to the history interaction experiences (history intersection record table) for asking letter to act on behalf of and obtain letter agency, the calculating of direct credit worthiness
Formula
It is defined as：
Wherein, si (x, y, n ', b ') represents the credit value between period n ', background b ' interactive agents；Wi is background phase
Like the variation of degree, Wi ∈ [0,1], if current background and the background of last interaction are more similar, its value is on the contrary closer to 1
Closer to 0；δ represents whether act on behalf of both sides occurred whether history interaction has history intersection record table；Fi represents to obtain letter agency
The time-concerning impact factor of the significance level of view, fi are defined as follows determined by the time of last time contacts：
Tp is the time or period of the last contacts in formula, and Tn is the contacts time now, and N is time decay factor, and N is got over
Small, the speed of decay is bigger；
(2) recommendation reputation value
The calculating of recommendation reputation value is according to time and background, obtains obtaining the poly- of letter agency from several third-party agents
Close prestige；Prestige polymerize
It is defined as follows：
μ in formula,η refers to the weight factor of first-hand, second-hand and the 3rd hand view respectively；Si (yi, n, b) is third party
Recommended agent provides the confidence level of prestige view；Fview (yi, y) represents first that prestige recommended agent yi obtains that letter acts on behalf of y to letter
Hand view；Sview (yi, y) expression recommended agents yi is obtained second-hand's view that letter acts on behalf of y；Tview (yi, y) represents to recommend generation
Manage yiTo the 3rd hand view for obtaining letter and acting on behalf of y；
(3) group's credit value
One expert panel is formed by the high third-party agent of prestige, by experience in person come to other agencies or service
Make evaluation；Group's credit value
It is defined as：
In formula, g represents to allow the group's number occurred.Gi (gi, n, b) represents that the letter agency that obtains that i-th of group provides believes
Reputation value, Rg (gi, y) represent the confidence level of i-th of group；
(4) comprehensive credit worthiness
Comprehensive trust value
SOC-TrustSM(dT,iT,C,G)
It can use as formula is as follows：
Wherein, α 1, α 2, α 3 represent the weight factor of direct prestige, recommendation reputation and group's recommendation reputation, and value all exists
Between [0,1], and α 1+ α 2+ α 3=1.
Claims (2)
- A kind of 1. method of mobile device electric power mutual assistance, it is characterised in that comprise the following steps：The first step：By means of electric person a charge request is sent to management serverIn all users for identifying oneself with electric power mutual assistance wireless network, if equipment of the user in the presence of needing to be electrically charged, by means of electric person b Charge request rb is sent using the wireless device in equipment and gives wireless network management server, and allows management server to read him Configuration file and status of equipment；Second step：Management server receives the value-at-risk of request and computation requestsTo determine whether to receive this charge request, management server receives the value-at-risk of management server computation requests first Rb is asked, and obtains the configuration file on user equipment and status of equipment, then according to the configuration file and status of equipment of user Rb value-at-risk and risk class is calculated, if value-at-risk is higher than critical value, request can be rejected；The value-at-risk of request is defined as follows：<mrow> <mi>R</mi> <mi>i</mi> <mi>s</mi> <mi>k</mi> <mrow> <mo>(</mo> <msub> <mi>r</mi> <mi>b</mi> </msub> <mo>)</mo> </mrow> <mo>=</mo> <mn>1</mn> <mo>-</mo> <mfrac> <mn>1</mn> <mrow> <mn>1</mn> <mo>+</mo> <msup> <mi>e</mi> <mrow> <mo>-</mo> <mfrac> <msub> <mi>C</mi> <mi>b</mi> </msub> <msub> <mi>T</mi> <mi>b</mi> </msub> </mfrac> </mrow> </msup> </mrow> </mfrac> </mrow>Value-at-risk and the credit worthiness of user, transaction count is related, and in formula, Cb is user b prestige, and Tb is that user b is participated in The number of transaction, prestige are the accumulative of the electricity of user's debt-credit；Risk class is divided into low risk class, and moderate risk class, high risk grade, risk class is according to function Risk (rb) value defines；3rd step：Management server is to find all power supply persons by means of electric personManagement server can call location Based service, and now server can first obtain GPS in the data by means of electric person b equipment Information, the information provided according to GPS longitude and latitude, management server can be using by means of obtaining institute in certain limit of the electric person as the center of circle There is the GPS information of other users equipment, and all users are with borrowing the distance between electric person in computer capacity, according to by means of electric person b's All mobile device users around by means of electric person are found in position, and then it sends request rb and its risk class to that Receive the user of electric power mutual help service agreement on network a bit, if these users agree to lend their electric power, they reply Server and turn into candidate power supplier l1, l2 ..., ln；4th step：Management server calculates the priority of all candidate power suppliersIf the quantity of candidate power supplier is more than one, management server can call these power suppliers from the database of server Conventional Transaction Information, candidate power supplier l1, l2 ... are calculated according to the status of equipment of candidate power supplier and historical record, ln's Priority, wherein, the priority for the power supplier that status of equipment is excellent and historical transaction record enjoys a good reputation can be higher than other people, so Management server, which can give, afterwards borrows electric person to send a list according to the candidate power supplier of priority rank；The priority of power supplier is defined as follows：<mrow> <mi>p</mi> <mi>r</mi> <mi>o</mi> <mi>i</mi> <mi>o</mi> <mi>r</mi> <mi>i</mi> <mi>t</mi> <mi>y</mi> <mrow> <mo>(</mo> <msub> <mi>l</mi> <mi>i</mi> </msub> <mo>)</mo> </mrow> <mo>=</mo> <mfrac> <mrow> <msub> <mi>E</mi> <mi>i</mi> </msub> <mo>&CenterDot;</mo> <msub> <mi>S</mi> <mi>i</mi> </msub> <mo>&CenterDot;</mo> <mrow> <mo>(</mo> <mo>|</mo> <msub> <mi>C</mi> <mi>i</mi> </msub> <mo>|</mo> <mo>-</mo> <msub> <mi>C</mi> <mi>min</mi> </msub> <mo>)</mo> </mrow> <mo>&CenterDot;</mo> <msub> <mi>T</mi> <mi>i</mi> </msub> </mrow> <mrow> <mo>(</mo> <msub> <mi>C</mi> <mi>max</mi> </msub> <mo>-</mo> <msub> <mi>C</mi> <mi>min</mi> </msub> <mo>)</mo> <mo>&CenterDot;</mo> <msub> <mi>T</mi> <mi>max</mi> </msub> </mrow> </mfrac> </mrow>Ei is power supplier, and li electric power abundance degree, Si is power supplier, and for li relative to the Position stability by means of electric person b, Ci is power supply Person li credit worthiness, Ti be power supplier Ei participate in transaction number, Cmax be | C1 |, | C2 | ..., | Cn | } in maximum Value, Cmin be | C1 |, | C2 | ..., | Cn | } in minimum value, Tmax is the maximum in { T1, T2 ..., Tn }；Position stability Si is defined as：<mrow> <msub> <mi>S</mi> <mi>i</mi> </msub> <mo>=</mo> <msqrt> <mrow> <mfrac> <mn>1</mn> <mi>m</mi> </mfrac> <munderover> <mi>&Sigma;</mi> <mi>j</mi> <mi>m</mi> </munderover> <msup> <mrow> <mo>(</mo> <msub> <mi>d</mi> <mrow> <mi>j</mi> <mi>b</mi> </mrow> </msub> <mo>-</mo> <mover> <mi>d</mi> <mo>&OverBar;</mo> </mover> <mo>)</mo> </mrow> <mn>2</mn> </msup> </mrow> </msqrt> </mrow>{d1b,d2b,…,djb,…,dmbIt is the test for borrowing the distance of m times between electric person b and power supplier li,It is { d1b,d2b,…, djb,…,dmbAverage value, and5th step：A power supplier is selected by means of electric person, and asks to establish the link with power supplierA power supplier is selected according to priority and other information from one group of power supplier { l1, l2 ..., ln } by means of electric person b, and The information of selection is sent to management server, management server receive information and sends this information and informs selected power supply Person, notify selected power supplier to open charging module and prepare to begin setting up charging link, returned if power supplier gets out charging Breath write in reply to management server, if the interim busy or equipment of power supplier breaks down, returning to management server can not The information of charging, if server, which receives, charge information or not to receive the feedback information of power supplier for a long time, notify Power supplier is found again by means of electric person, and the power supplier for starting a new round searches, by that analogy；6th step：Management server confirms to borrow the charging link between electric person and power supplierManagement server can confirm the execution level of transaction and record by means of the charging chain between electric person b and selected power supplier li Connect；Perform level and be divided into pressure grade, common grade, voluntary grade, this be regard request rb risk class and urgency and Fixed；7th step：Management server helps to establish the link by means of electric person and power supplierIn this step, management server can establish a physical link borrowed between electric person b and power supplier li, prepare wireless charging Electricity；8th step：Open the wireless charging module of two equipment and start to charge upIn this step, the wireless charging module being embedded in their wireless charging devices can be opened by means of electric person b and power supplier li simultaneously Start to charge up；When charging process is completed, they send information to management server；9th step：Management server calculates service credit and debt creditManagement server can borrow the amount taken to calculate credit worthiness according to electric power, and update other historical transactional informations of both sides.
- A kind of 2. method of mobile device electric power mutual assistance according to claim 1, it is characterised in that wireless charging module bag Include induction charging module, magnetic resonance charging module or radio waves type charging module.
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